Coin-controlled lock



April s, 1924. n K

E. L. EDWARDS ET AL COIN CONTROLLED LOCK .Filed June' 22 1921 2Sheets-Sheet l which fragments. are shown;

Patented Apr. 8, 1924.

UNITED STATES PATENTOFFICE.

EDWIN L. EDWARDS, FRANK A. FAR-WELL, AND FRANK OfWILEY, 0F INDIANAPOLIS,INDIANA, ASSIG-NORS 'IO UNIVERSAL SERVICE CORPORATION, OF INDIANAPOLIS,INDIANA, A CORPORATION OF INDIANA.

COIN-GONTROLLED LOCK.

Application led June 22,

To all whom t may concern.'

Be it known that we, EDWIN L. EDWARDS,-

FRANK A. F ARWELL, and FRANK O. WILEY, citizens of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Coin-Controlled Lock, of which thefollowing is a specification, reference being had to the accompanyingdrawings, and to the figures of reference marked thereon.

This invention relates to a lock of the type that is used on doors oftoilet rooms and on doors of rooms or apartments to which entrance maybe gained by the deposit of a fee, the invention having reference moreparticularly to a lock that is designed to be operated to unlock a doorby means of a coin inserted in the lock.

An object of the invention is to provide a coin-controlled lock whichshall be so constructed as to not be costly, but shall be simple andreliable and not be liable to become deranged nor troublesome in use.

Another object is to provide an improved coin-controlled lock and coinbox combined which shall be of such construction'as to permitcompactness of mechanism and provide for large coin capacity, and whichshall be of such structure as to be durable and economical in use.

With the above-mentioned and other objects in view, the inventionconsists in a coin-controlled lock having operative mechanism ofimproved structure permitting coins to pass progressively by the forceof gravity through the lock-controlled means and into the coin box; and,the invention consists also further in the novel'parts andk in thecombinations and arrangements of parts as hereinafter particularlydescribed and further pointed out'in t-he accompanying claims.

Referring to the drawings, Figure 1 is a front elevation of the improvedloc-kin connection with a door and door frame of Fig.,2 is a fragmentaryedge view ofthe door and the lock applied thereto; Fig. 3 is a top planof the improved lock and a keeper with which the lock (zo-operates, onan enlarged scale, as applied to a door and door frame of which afragmentary horizontal section is shown; Fig. 4 is a front elevation ofthe improved lock minus its covers, on an en- V1921. Serial No. 479,495.

larged scale; Fig. is a fragmentaryy vertical section of the lockapproximately on the line V-V in Fig. 3; Fig. 6 is a view similar toFig. 5, but with operative parts in different positions; Fig. 7 is. aview similar to Figs. 5 and 6 except that the operative parts are shownin different positions; Fig. 8 `is a section approximately on the lineVIII- VIII vin Fig. .6 on an enlarged scale, as the lock is applied to adoor; Fig. 9 is a horizontal section approximately on the line IX-IX inFig 4; and, Fig. 10 is a horizontal section approximately on the lineX-X in Fig. 4.

Similar reference characters in the different figures of the drawingsindicate oorresponding or like elements or features of constructionherein referred to in detail.

In the drawings the numeral 1 indicates a door frame andQ indicates adoor provided with the improved lock which as pref-- erably constructedcomprises a back plate 8, side walls 4 and 5, a top 6 'having aprojecting guide portion 7 on its inner side in which is a Vcoin slot 8,a bottom 9 connected to the side walls and the back plate, and apartition 10, constituting the principal portion of a casing having anvupper chamber for the lock mechanism and a lower chamber to hold-thespent' coins. The partition 10 preferably has a guide'rib 11.-pro,`

jecting beyond the plane of they front of the side walls, and thepartitionhas ya slot 12 therein to permit the coins to .pass into thecoin box, the slot preferablybeing broader at its top than at its lowerend. lThe, back plate 3 has a relatively vthick portion 13 adjacent tothe side wall 4 and a thick portion 14 adjacent to the side wall 5. Theback plate has screw holes 15 and 16 in the thicker portionsrespectively to receive screws whereby to secure the casing to the door,thelower portion of theback plate having also screw holes 17 and 18 toreceive securing screws.' A guide plate 19Jis secured to the front ofthe portion 13 of the back plate and extends down to the partition 10and also over nearly to the thicker portions 14Y of the back plate.

The upper chamber of the casing is provided with a front plate 20, thelower end of the plate preferablybeing arranged in connection with astop shoulder 21correspending to the front of the partition 10.

The inner side of the front plate preferably has ribs 22 and '23 thereonto stiifen the plate and also guide it to position between the sidewalls of the casing, and each rib has a projection 24 on its end that isnormally adjacent to the top 6, the projections normally extendingbehind suitably supported keepers 25 and 26 whereby to secretly lock theupper portion of the front plate securely in place. The lower" portionof the front plate is provided on its inner side with a lock 27 fromwhich a lock bolt 28 is projected into a slot 29 with which thepartition 10 is provided.v rlhe lock has a guide barrel 30 thereon inwhich a key cylinder 31 is arranged. The coin box is provided with afront plate 32 which also has ribs 33 on its inner side that areprovided each with a projection 34 normally arranged adjacent to thebottoni 9, the projections engaging keepers 35 and 36 suitably supportedadjacent to the bottom. The inner side of the upper portion of the frontplate 32 is provided with a lock 37 from whichy a lock bolt 38 isprojected into the slot 29, and the lock is provided with a guide barrel39 in which a key cylinder 40'is arranged.

A lock bolt is provided which has a body portion 41 and is horizontallyarranged upon or above the partition 10, the back plate 3 being recessedto receive the bolt. The forward portion of the lock bolt has arelatively thick portion 42 and the rear-4 ward or opposite end has arelatively thick abutment portion 43 onthe front of the body portion,and the bolt hasl a thicker head portion 44 which provides a shoulder 45at the rearward end thereof, the head portion beingmovably guided in theside wall 4 of the casing and normally projecting therefrom, and it hasa beveled or inclined back 46 to engage the front of a keeper. The lockbolt is provided with a stud 47 which projects from the front of V theabutment portion 43. A plate spring 48 is arranged adjacent to the innerside of the wall 4 and is 4connected to a fixed stud 49 from which itextends to and beyond a tension stud 50 to the shoulder 45 and so `thatit automatically projects the lock bolt into a keeper 51 secured to theouter side of the rdoor frame 1. Preferably the wall 4 has a guard 52thereon that partially covers the front and upper and lower portions ofthe keeper to prevent the insertion of any instrument between "the lockcasing and the keeper in an effort to retract the lock bolt.

The upper portion of the back plate 3 has a pivot 53 thereon to which acontrolling bar 54 is connected, the bar extending downward and adjacentto the front of the body portion 41 of the lock bolt, and the bar has avertical slot 55 therein. The back plate 3 is provided also with anotherpivot 56 at a suitable distance from the bar 54, the pivot 56 beinglower than the pivot 53, and it supports a controlling lever between itsends so as to provide an upper arm 57 and a lower arm 58, the upper armhaving a stud 59 thereon adjacent to its upper end. The controllinglever and the controlling bar are arranged between the thicker portions13 and 14 of the back plate and a suitable distance apart `to receive acoin of certain denomination between them, and the lower arm 58preferably has a concavity 60 in the edge thereof that is presentedtowards the bar 54, to receive a portion of the coin and temporarilyhold the coin in contact with the bar 54. The arm 58 extends against theabutment portion 43 of the lock bolt and adjacent to the thinner portion41, the concavity preferably being arranged so as to retain the coinopposite to the portion 41. The lower end of the arm 58 preferably isrelatively broad so that a portion thereof projects laterally to formthelower portion of the concavity. It will be seen that the back plate3, the guide plate 19 L which constitutes a frame member, and the bar 54and the opposite lever constitute a coin chute.

The plate 19 is provided with a pivot 61 to which a lever or operatingarm 62 is connected, the arm 62 having a wrist pin 63 thereon thatextends through a. slot 64 in the plate 19 and extends also into theslot The arm 62 has a lug 65 thereon to which a coil spring 66 isconnected, the spring being suitably anchored preferably tothe stud 50,to yieldingly hold the bar 54 against the adjacent lower portion'ot theback plate portion 13. The arm 62 has a boss 67 on its front and theboss has a key slot 68 in its front portionjA A knob 69 has aV suitablespindle member 7() that is `rotatively arranged in the front plate 20 inalinement with the pivot 61 and so that the knob shall be carried by thefront plate and prevented from being removed when the front plate 2O issecured t0 the remaining portion of the lock casing. The knob spindlehas a key 71 on its inner end that* extends into the slot 68 whichenables the knob to move the lever arm 62 and the arm to move thecontrolling bar 54. j

For the purpose of enabling the door to be opened by a person within aroom or apartment a spindle 72 is arranged so as to extend through thedoor 2 and through the backplate of the lock, and it has a knob 7 3fastened thereto at the inner Vside of the door. A lever is securedbetween its ends to the spindle 72 so as to have a downward extendingarm 74 and an upward extending arm 75. The arm 74 extends partiallyacross the front of the abut-ment portion 43 of the lock bolt andbetWeenthe stud 47 and the adjacent edge of the frame member 19,

and preferably the arm is yieldingly drawn towards the frame member bymeans of a coil spring-7 6 anchored to a stud 77 secured a special keyto be inserted through a key hole 8Ok in the front plate 20, so that inspecial cases the door may be unlocked from the outside without the useof a coin.

The projecting portion 7 of the top 6 has a downwardly extending guideplate 81 suitably fastened thereon and it partiallyguidesa shuttercomprising a main portion 82 having a stem 83xI thereon toy which aguide portion v84 is connected, the shutter being guided in a suitablegroove in the front of the back plate of the casing, and being soarranged as to partly close the coin slot 8, the shutter being providedwith a lug 85 arranged to be engaged by the device 59 on the arm 57 formoving the shutter to closing position. The portion 14 of the back platehas a. pivot 86 thereon below the plane of the shutter and it supports atrigger device 87 having a cam face 88 to be engaged b-y the upper vendof the arm 75, the upper portion of the trigger having a catch shoulder89 to engage the shutter and hold it in closing position, or permissiblyengage a suitable device on the shutter, such as a pivot 90 or the endof a rod 91 connected to the pivot, the rod being connected to a crankarm 92 secured to a rotative shaft 93. A coil spring 94 is suitablyanchored to the casing and arranged'to retractl the shutter in ordertoopen the coin slot, and preferably the spring is connected with therod 91 and the crank arm. The shaft 93-is the actuating member of acounter 95 which will be seen through an aperture 96 in the front plate20, the aperture having a suitable shutter 97. It should be understoodthat the counter can be variously operated so as toi record or indicatethe number of coins usedy in the operation of the lock.

In practical usev a coin 98 is inserted through the slot 8 and descendsby the force of gravity through the coin chute-until it is stoppedopposite to the front of the body portion of the lock 'bolt with aportion of the edge of the coin in the eoncavity 60. f then the knob 69be turned in the'only direction permissible the arm 62 is caused toswing and lit in turn causes the controlling b-ar 54 to swing, asindicatedin Fig. 6,' the controlling bar pushing the coin which forcesthe arm 58 back and it in turn retracts the lock bolt, after which thedoor may be opened. As the arm 58 is swung back the arm 57 is swung awayfrom the portiorr 14 of the casing and the device 59 engages the lug 85and moves the shutter to closing position. After the door is opened theknob may be released and the spring 48 permitted to project the lockbolt, the coin then remaining in place as in Fig. 5. After the shutterhas been moved to closed position the trigger device 87 tilts by theforce of gravity into contact with'the top of the lever arm 75,permitting the shoulder 89 to engage the shutter and hold it inposition.`

The door is usually closed forcibly, causing the inclined face/46 of thelock bolt to strike the keeper 51 which causes retraction of the lockbolt, and after the door becomes closed the bolt is projected into thekeeper. As the lock bolt is thus suddenly thrust back the controllingbar 54 remains suspended normally, as in Fig. 7, and the pressure of thelock bolt against the arm 58 is released, so that the weight of the coincauses the freely swinging arm 58 to release the coin which fallsthrough the slot 12 into the coin box. The door may be now opened fromthe inside by turning the knob 73 which' causes the arms 74 and 75 to bebrought approximately to the position shown in Fig. 7, the arm 74engaging the stud 47 and retracting the lock bolt, while the arm engagesthe cam face 88 and lifts the device 87 approximately as shown vbybroken lines in Fig. 7. On further movement of the arm 75 the trigger isfurther tilted until the shoulder 89 releases the shutter which isretracted by its spring. The arm 75 is further moved in the operation ofthe knob until it has passed the trigger and is brought approximately tothe position'indicated by broken lines in Fig. 7 when the lock bolt isfully retracted, the position of the arms being indicated by brokenlines also in Fig. 4. When the shutter is released and retracted itpasses over the top of the trigger and holds the trigger lapproximatelyas shown in Fig. 4. Also, when the shutter is being retracted the lug 85engages the stud 59 and pushes the arm 57 back to normal position as itappears in Figs. 4 and 5, and the lock is again set to receive the cointo be operated as before.

Having thus described the invention, what is claimed as new is 1. Acoin-controlled lock including a projectable lock bolt, a springarranged toproject the bolt, a controlling bar pivotally supported abovethe lock bolt, a controlling lever pivotally supported above the lockbolt opposite to the controlling bar and with the bar forming a coinchute and having two arms, one of the lever arms being o-perated by thebar with a coin and engaging the lock bolt to retract it, and a coinslot shutter movably supported above the coin chute and operated by theremaining one of the lever arms.

2?* A coin-controlled loclr including a projectable lock bolt, a springarranged to project the bolt, a controlling bar pivotally supportedabove the loclr bolt, a controlling lever pivotally supported above thelock bolt and having two arms, one of the lever arms being operated bythe bar with a coin and engaging the lock bolt to retract it, a coinslot shutter movably Supported and operated by the remaining one of thelever arms, a trigger pivotally supported to engage and hold the shutterwhen operated, a rotatively supported spindle, and a leverr arm securedto the spindle and movable into engagementI with the trigger to trip itto release the shutter.

3. A coin-controlled lock including a projectable lock bolt, a springarranged to project the bolt, a controlling bar pivotally support-edabove the lock bolt, the bar constituting one wall of a coin chute, anoperating arm pivotally supported above the loclr bolt and havingconnection with the controlling bar to operate the bar, a leverpivotally supported to constitute an opposite wall of the coin chute,the lever having two arms arranged opposite to the controlling bar, oneof the lever arms being arranged to be operated by the controlling barwith a coin and engaging the loclr bolt to retract it, a coin slotshutter movably supported and operated by the remaining one of the leverarms, and a knob having a rotative spindle connected with the operatingarm.

4. A coin-controlled lock including a movable lock bolt, a springarranged to project the bolt, a controlling bar pivotally supported andextending downward and adjacent to the lock bolt, the bar constitutingone wall of a. coin chute, a controlling arm pivotally supportedopposite to the bar and having connection with the lock bolt to retractthe bolt, the arm being arranged to be connected by a coin with the barto operate the arm, an operable operating arm pivotally Supported andhaving connection with the controlling bar to pivotally move the bar, ahorizontally movable coin slot shutter, a spring arranged to retract theshutter, a trigger movably supported to engage and vhold the shutterwhen projected, means operated by the controlling arm to project theshutter, and means for moving the trigger to release the shutter.

5. A coin-controlled lock including a pro-V ljectable lock bolt, aspring arranged to project the bolt, a controlling bar pivotallysupported and having a longitudinal slot therein, an operating armpivotally supported and having a wrist pin thereon extending into saidslot, a lever pivotally supported and having two arms arranged oppositeto the controlling bar, one of the lever arms engaging the loclr bolt toretract it and having a coin-holding projection extending towards thecontrolling bar, a coin slot shutter movably supported and operated bythe remaining one of the lever arms, a knob having a spindle connectedwith the operating arm, and a supported spring having connection withthe operating arm.

6. A coin-controlled lock including a movable lock bolt, a springarranged to project the bolt, a controlling bar pivotally supported andextending downward and adjacent to the lock bolt, a controlling armpivotally supported and having connection with the lock bolt to retractthe bolt, the arm having a projection extending towards the controllingbar to support a coin in contact with the bar, an operable operating armpivotally supported and having connection with the controlling bar topivotally move the bar towards the controlling arm, a spring arranged tomove the operating arm and the controlling bar in the oppositedirection, a. movable coin slot shutter, a spring arranged to retractthe shutter, means for projecting the shutter, a trigger pivotallysupported to engage and hold the shutter when projected, a rotatively,supported spindle, and a lever having two arms and secured'to thespindle, one of the lever arms having connection with the lock bolt toretract the bolt, the other of the lever arms being movable intoengagement with the trigger to trip it to release the shutter.

7 In a coin-controlled lock, the combination of a lock bolt horizontallymovable and having an abutment and a shoulder facing the abutment, aframe plate i'ixedly arranged opposite to the lock bolt and providedthereon with a pivot, a controlling bar having an upper portionpivotally supported and a lower portion arranged between the lock boltand the frame plate, the bar constituting one wall of a coin chute, anoperable operating arm supported on said pivot and operatively connectedwith the controlling bar to operate the bar, and a controlling armhaving a portion pivotally supported and a lower portion arrangedopposite to the lower portion of the controlling bar between the lockbolt and the frame plate and against said abutment, the controlling armbeing operated by the bar with a coin, and a supported spring engagingsaid shoulder to project the lock bolt.

8. In a coin-controlled lock, the combination with a movable lock bolthaving an abutment and a shoulder facing the abutment, of a controllingbar having an upper portion pivotally supported and a lower portionarranged between said abutment and said shoulder, a controlling armhaving a portion pivotally supported and a lower po-rtion arrangedbetween the abutment and the lower portion of said bar, a supportedspring engaging said shoulder to project the lock bolt and thereby holdsaid abutment against said arm, and means for operating lthe controllingbar.

9. In a coin-controlled lock, the combina tion of a casing comprising aback plate and a front plate, a Jframe plate ixedly supported betweenthe back plate and the front plate and provided thereon with a pivot, alock bolt movable between the back plate and the frame plate, a springarranged to project the lock bolt, a controlling bar pivotally supportedabove the lock bolt and extending downward and adjacent to the bolt andbetween the back plate and the frame plate, an operable operating armsupported on said pivot and having connection with the controlling barto operate the bar, and a controlling arm pivotally supported above thelock bolt and extending downward opposite to the controlling bar to beconnected therewith by a coin and having connection with the lock boltto retract the bolt.

10. In a coin-controlled lock, the combination of a casing with a tophaving a coin slot therein, a shutter movably guided under said top tobe projected to closesaid slot, a counter supported in the casing andhaving an operating device, a rod connected to the shutter and to saiddevice, a spring connected to the casing and having connection with saidrod and said device to simultaneously retract them, a lock bolt movablyguided in the casing, a spring arranged to project the lock bolt, acontrolling bar pivotally supported and extending downward and adjacentto the lock bolt, means for operating the controlling bar, a leverpivotally supported andl having an arm arranged to retract the lock boltand an arm arranged to project the shutter, a trigger movably supportedin the casing to hold the shutter when projected, and separate meanssupported by the casing to simultaneously retract the lock bolt andaetuate the trigger to release the shutter.

11. In a coin-controlled lock, the combination with a casing having acoin slot in its top, of a shutter movably guided under s aid top to beprojected to close said slot, a spring connected to the casing andhaving connection with the shutter to retract the shutter, a leverpivotally supported and having connections to project the shutter, atrigger pivotally supported and having a shoulder to engage and hold theshutter when projected, the trigger having a cam face, a lock boltmovably guided and engaged by the lever to be retracted thereby, aspring arranged to project the lock bolt, a controlling bar arrangedopposite to the lever and pivotally supported, an operating armpivotally supported and having controlling connection with thecontrolling bar, a knob having a spindle detachably connected with theoperating arm, a spindle rotatively supported and having a knob on oneend thereof, the opposite end of the spindle having a keyconnectorthereon, a lever secured to the last described spindle and having an armto engage and retract the lock bolt and also an arm movable into contactwith the cam face of said trigger to actuate the trigger to release theshutter.

12. In a coin-controlled lock, the combination of a casing comprising aback plate and sides and also a top and a partition, the back plateconstituting one wall of a coin chute, and a front plate removablysecured to the sides and the top and the partition, said top and `saidpartition having each a coin slot therein arranged one above the other;a frameV plate secured to the inner side of said back plate to form anopposite wall of the coin chute and extending approximately to saidpartition, the frame plate having an opening therein, a lock boltmovably guided in the back of said plate above said partition and havinga face forming a portion of the wall of the coin chute opposite to theframe plate and normally projecting through one of said sides, a springsupported in said casing and projecting said bolt, a controlling barpivoted to said back plate and extending nearly to said partition, thebar constituting another wall of the coin chute, a controlling armpivoted to said back plate and extending nearly to said -partition at adistance from said bar to constitute an opposite wall of the coin chuteand having engagement with said bolt to retract the bolt, thecontrolling arm being operated by the controlling bar with a coin, anoperating arm pivoted to said frame plate and having a wrist pin thereonextending through said opening and having connection with saidcontrolling bar, and a knob spindle rotatively supported in said frontplate and connected with said operating arm.

In testimony whereof, we afix our signatures in presence of twowitnesses.

EDWIN L. EDWARDS. FRANK A. FARWELL. FRANK o. WILEY.

Witnesses:

E. T. SILvIUs, ROBERT LIEBRICH.

